The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's descending node.[1]
Octon series with 21 events between May 21, 1993 and August 2, 2065 | ||||
---|---|---|---|---|
May 20–21 | March 8–9 | December 25–26 | October 13–14 | August 1–2 |
98 | 100 | 102 | 104 | 106 |
May 21, 1955 | March 9, 1959 | December 26, 1962 | October 14, 1966 | August 2, 1970 |
108 | 110 | 112 | 114 | 116 |
May 21, 1974 | March 9, 1978 | December 26, 1981 | October 14, 1985 | August 1, 1989 |
118 | 120 | 122 | 124 | 126 |
May 21, 1993 |
March 9, 1997 |
December 25, 2000 |
October 14, 2004 |
August 1, 2008 |
128 | 130 | 132 | 134 | 136 |
May 20, 2012 |
March 9, 2016 |
December 26, 2019 |
October 14, 2023 |
August 2, 2027 |
138 | 140 | 142 | 144 | 146 |
May 21, 2031 |
March 9, 2035 |
December 26, 2038 |
October 14, 2042 |
August 2, 2046 |
148 | 150 | 152 | 154 | 156 |
May 20, 2050 |
March 9, 2054 |
December 26, 2057 |
October 13, 2061 |
August 2, 2065 |
158 | 160 | 162 | 164 | 166 |
May 20, 2069 |
March 8, 2073 | December 26, 2076 | October 13, 2080 | August 1, 2084 |
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- ^ Note S1: Eclipses & Predictions in Freeth, Tony (2014). "Eclipse Prediction on the Ancient Greek Astronomical Calculating Machine Known as the Antikythera Mechanism". PLOS ONE. 9 (7): e103275. Bibcode:2014PLoSO...9j3275F. doi:10.1371/journal.pone.0103275. PMC 4116162. PMID 25075747.